X-rays are similar in nature to_______________?
Correct answer: C. γ-rays
- A. Cathode rays
- B. Positive rays
- C. γ-rays
- D. Beta rays
Explanation
X-rays and gamma rays are both high-frequency electromagnetic waves and differ mainly in their origin, not in their fundamental nature. The likely mistake is choosing cathode rays, because cathode rays are streams of electrons and therefore charged particles, whereas X-rays are uncharged photons.
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About Electromagnetic Waves
Electromagnetic waves consist of mutually perpendicular, oscillating electric and magnetic fields that also remain perpendicular to the direction of propagation. They travel through vacuum at the speed of light and include radio waves, microwaves, infrared, visible, ultraviolet, X-rays and gamma rays. Unlike mechanical waves, they do not require a material medium.
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